Download or read book Relationship Between the Functional Properties of Road Surface and Traffic Safety written by Peter Wretling and published by . This book was released on 1996 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Functional Properties of Concrete Roads written by Malin Löfsjögård and published by . This book was released on 2003 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of road surface texture on traffic characteristics related to environment economy and safety a state of the art study regarding measures and measuring methods written by Ulf Sandberg and published by . This book was released on 1998 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Relationship Between Changes in Traffic Volume and Road Safety Characteristics written by Yee, Hon Wa and published by G.D. Hamilton Associates Consulting Limited. This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigating Correlations of Pavement Conditions with Crash Rates on In Service U S Highways written by Ahmed F. Elghriany and published by . This book was released on 2015 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pavement conditions may have a significant impact on traffic safety, a correlation which needs to be studied and quantified. The research reported in this dissertation investigates the relationship between pavement conditions (specifically, ride quality and distresses of the pavement surface) and crash rates (CR) by examining traffic safety performance over time under changing pavement conditions for selected asphalt concrete (AC) and Portland cement concrete (PCC) pavement sections on in-service U.S. highways. This dissertation covers four topics on the relationship between pavement conditions and CR on highways. The first study examines different model formulations to investigate the effect of roadway (rigid pavement) surface conditions on traffic safety for highways in Ohio. In another study, conducted on U.S. highways for both AC and PCC pavement, various regression models are used to investigate whether pavement conditions correlate with CR. For both studies, a quadratic relationship is identified as the most effective for linking the CR with the International Roughness Index (IRI). The IRI values for PCC pavement corroborate those in the Ohio study. In the third study, an effort is made to better understand the potential effects of two different measurements, IRI and pavement Surface Distresses Indices (SDIs), on traffic crashes on U.S highways. The results show that a quadratic model may best fit the data for both types of pavement when including IRI and SDIs. In the fourth study, overall cracking indices are developed based on SDIs for AC and PCC pavements. The results show a relationship between the developed overall indices and CR with second-order (polynomial) models. The findings of these studies suggest two major conclusions. First, there is a clear correlation between CR and pavement conditions. Second, worsening pavement conditions can lead to more accidents in a normal driving environment. The models developed in these studies can be used to predict the safety of AC and PCC pavement sections on in-service highways, enabling state and local transportation agencies to better understand the problem and formulate appropriate remedial action strategies. The findings of this study may encourage extra vigilance from drivers and inform transportation officials in pavement maintenance decision-making.
Download or read book Relationship Between Pavement Macrotexture and Crash Incidences on North Carolina Roads written by Prasanna R. Kusam and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A recent study in Australia has shown that there is a relation between low pavement macrotexture and crash incidence on highways. However, literature documents no such research in the United States. This study focuses on evaluating the role of pavement macrotexture in crashes on selected roads in the State of North Carolina (NC). Pavement macrotexture refers to variations in the road surface in the range 0.02" (0.5 mm) to approximately 2" (50 mm). Laser profilometer data obtained from the NC Department of Transportation (NCDOT) is processed to calculate estimated pavement macrotexture at one-sixteenth of a mile interval according to the ASTM standards. Crash data collected over the same lengths of the corridors were integrated with the calculated pavement macrotexture. Scatter plots and bivariate analysis showed that a strong relationship exists between pavement macrotexture and crashes on NC roads. The coefficient for pavement macrotexture is negative indicating that the number of crashes or logarithm of crashes decreases as pavement macrotexture increases. Similar results were observed when analyzed to study the relationship between dry crashes, wet crashes, injury crashes and property damage only crashes with pavement macrotexture. The statistical parameters indicate that the relationship between pavement macrotexture and logarithm of crashes is relatively strong than when compared to crashes. The relatively low R2 values indicate that pavement macrotexture alone cannot explain the crashes on NC roads. Predictor variables such as million vehicle miles of travel (as function of traffic volume and length), the number of interchanges, the number of at-grade intersections, the number of grade separated interchanges and the number of bridges, culverts and overhead signs were considered along with pavement macrotexture to study their relationship with crashes. Multivariate analyses were conducted by considering crashes and logarithm of crashes as dependent (target) variable. In all the cases tested, models with logarithm of crashes as dependent variable showed a very strong relationship with macrotexture than when compared to models with crashes. Analyses and evaluation indicate that crashes decrease with increase in pavement macrotexture on NC roads. Pavement macrotexture greater than or equal to 0.06" (but typically less than 1.2") would be most appropriate to provide safe and efficient transportation to road users. The results can be used by NCDOT to pro actively apply treatments to increase pavement macrotexture so as to improve safety on NC roads
Download or read book Noise and Texture on PCC Pavements written by John R. Jaeckel and published by . This book was released on 2000 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monitoring and Improving Roadway Surface Conditions for Safe Driving Environment and Sustainable Infrastructure written by Ching-Yao Chan and published by . This book was released on 2012 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Toward the goal of reducing collisions while maintaining the integrity and sustainability of roadways, separate projects in both France and California in recent years have been developed to achieve the following objectives: evaluating the effectiveness of."--Documentation page abstract.
Download or read book Guide for Pavement Friction written by and published by AASHTO. This book was released on 2008 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains guidelines and recommendations for managing and designing for friction on highway pavements. The contents of this report will be of interest to highway materials, construction, pavement management, safety, design, and research engineers, as well as others concerned with the friction and related surface characteristics of highway pavements.
Download or read book Highway Safety Literature written by and published by . This book was released on 1979 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Encyclopedia of Transportation written by and published by Elsevier. This book was released on 2021-05-13 with total page 4418 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an increasingly globalised world, despite reductions in costs and time, transportation has become even more important as a facilitator of economic and human interaction; this is reflected in technical advances in transportation systems, increasing interest in how transportation interacts with society and the need to provide novel approaches to understanding its impacts. This has become particularly acute with the impact that Covid-19 has had on transportation across the world, at local, national and international levels. Encyclopedia of Transportation, Seven Volume Set - containing almost 600 articles - brings a cross-cutting and integrated approach to all aspects of transportation from a variety of interdisciplinary fields including engineering, operations research, economics, geography and sociology in order to understand the changes taking place. Emphasising the interaction between these different aspects of research, it offers new solutions to modern-day problems related to transportation. Each of its nine sections is based around familiar themes, but brings together the views of experts from different disciplinary perspectives. Each section is edited by a subject expert who has commissioned articles from a range of authors representing different disciplines, different parts of the world and different social perspectives. The nine sections are structured around the following themes: Transport Modes; Freight Transport and Logistics; Transport Safety and Security; Transport Economics; Traffic Management; Transport Modelling and Data Management; Transport Policy and Planning; Transport Psychology; Sustainability and Health Issues in Transportation. Some articles provide a technical introduction to a topic whilst others provide a bridge between topics or a more future-oriented view of new research areas or challenges. The end result is a reference work that offers researchers and practitioners new approaches, new ways of thinking and novel solutions to problems. All-encompassing and expertly authored, this outstanding reference work will be essential reading for all students and researchers interested in transportation and its global impact in what is a very uncertain world. Provides a forward looking and integrated approach to transportation Updated with future technological impacts, such as self-driving vehicles, cyber-physical systems and big data analytics Includes comprehensive coverage Presents a worldwide approach, including sets of comparative studies and applications
Download or read book Gravel Roads written by Ken Skorseth and published by . This book was released on 2000 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.
Download or read book A methodology for determining the role of vehicle handling in accident causation written by United States. National Highway Traffic Safety Administration and published by . This book was released on 1977 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Driving Simulation for Engineering Medicine and Psychology written by Donald L. Fisher and published by CRC Press. This book was released on 2011-04-25 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effective use of driving simulators requires considerable technical and methodological skill along with considerable background knowledge. Acquiring the requisite knowledge and skills can be extraordinarily time consuming, yet there has been no single convenient and comprehensive source of information on the driving simulation research being conduc
Download or read book Intelligent Transportation Related Complex Systems and Sensors written by Kyandoghere Kyamakya and published by MDPI. This book was released on 2021-09-01 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building around innovative services related to different modes of transport and traffic management, intelligent transport systems (ITS) are being widely adopted worldwide to improve the efficiency and safety of the transportation system. They enable users to be better informed and make safer, more coordinated, and smarter decisions on the use of transport networks. Current ITSs are complex systems, made up of several components/sub-systems characterized by time-dependent interactions among themselves. Some examples of these transportation-related complex systems include: road traffic sensors, autonomous/automated cars, smart cities, smart sensors, virtual sensors, traffic control systems, smart roads, logistics systems, smart mobility systems, and many others that are emerging from niche areas. The efficient operation of these complex systems requires: i) efficient solutions to the issues of sensors/actuators used to capture and control the physical parameters of these systems, as well as the quality of data collected from these systems; ii) tackling complexities using simulations and analytical modelling techniques; and iii) applying optimization techniques to improve the performance of these systems.
Download or read book Bibliography written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1960 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ICCOEE2020 written by Bashar S. Mohammed and published by Springer Nature. This book was released on 2020-12-31 with total page 1147 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains papers presented in the 6th International Conference on Civil, Offshore & Environmental Engineering (ICCOEE2020) under the banner of World Engineering, Science & Technology Congress (ESTCON2020) will be held from 13th to 15th July 2021 at Borneo Convention Centre, Kuching, Sarawak, Malaysia. This proceeding contains papers presented by academics and industrial practitioners showcasing the latest advancements and findings in civil engineering areas with an emphasis on sustainability and the Industrial Revolution 4.0. The papers are categorized under the following tracks and topics of research: 1. Resilient Structures and Smart Materials 2. Advanced Construction and Building Information Modelling 3. Smart and Sustainable Infrastructure 4. Advanced Coastal and Offshore Engineering 5. Green Environment and Smart Water Resource Management Systems
